403102420021 has 16 divisors (see below), whose sum is σ = 477282585600. Its totient is φ = 333106195968.

The previous prime is 403102419997. The next prime is 403102420051. The reversal of 403102420021 is 120024201304.

It is not a de Polignac number, because 403102420021 - 2⁷ = 403102419893 is a prime.

It is a super-2 number, since 2×403102420021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403102420051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338661 + ... + 1611898.

It is an arithmetic number, because the mean of its divisors is an integer number (29830161600).

Almost surely, 2^403102420021 is an apocalyptic number.

It is an amenable number.

403102420021 is a deficient number, since it is larger than the sum of its proper divisors (74180165579).

403102420021 is a wasteful number, since it uses less digits than its factorization.

403102420021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951268.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 403102420021 its reverse (120024201304), we get a palindrome (523126621325).

The spelling of 403102420021 in words is "four hundred three billion, one hundred two million, four hundred twenty thousand, twenty-one".